Ah, summer. Skin is glowier, moods are perkier and heads are itchier. Warm weather seems to bring everything back to life—including a host of microorganisms that love to hang out on your head. Here, three...

The best feeling: getting a fresh salon blowout. Your hair bounces in the wind, and you love catching a glimpse of your commercial-ready strands in the mirror. The worst? When your strands prematurely melt,...